Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Spin gap in a spiral staircase model. / Kiselev, M. N.; Aristov, D. N.; Kikoin, K.
в: Physica B: Condensed Matter, Том 359-361, № SPEC. ISS., 30.04.2005, стр. 1406-1408.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Spin gap in a spiral staircase model
AU - Kiselev, M. N.
AU - Aristov, D. N.
AU - Kikoin, K.
PY - 2005/4/30
Y1 - 2005/4/30
N2 - We investigate the formation of spin gap in one-dimensional models characterized by the groups with hidden symmetries. We introduce a new class of Hamiltonians for description of spin staircases - the spin systems intermediate between 2-leg ladders and S=1 spin chains. The spin exchange anisotropy along legs is described by the angle of spiral twist. The properties of a special case of spin rotator chain (SRC) corresponding to a flat 1-leg ladder is considered by means of fermionization approach based on Jordan-Wigner transformation. The influence of dynamical hidden symmetries on the scaling properties of the spin gap is discussed.
AB - We investigate the formation of spin gap in one-dimensional models characterized by the groups with hidden symmetries. We introduce a new class of Hamiltonians for description of spin staircases - the spin systems intermediate between 2-leg ladders and S=1 spin chains. The spin exchange anisotropy along legs is described by the angle of spiral twist. The properties of a special case of spin rotator chain (SRC) corresponding to a flat 1-leg ladder is considered by means of fermionization approach based on Jordan-Wigner transformation. The influence of dynamical hidden symmetries on the scaling properties of the spin gap is discussed.
KW - Quantum antiferromagnetism
KW - Quantum liquids
KW - Spin chains
UR - http://www.scopus.com/inward/record.url?scp=18144373816&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2005.01.441
DO - 10.1016/j.physb.2005.01.441
M3 - Article
AN - SCOPUS:18144373816
VL - 359-361
SP - 1406
EP - 1408
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - SPEC. ISS.
ER -
ID: 36119285